16559991

素因数分解:

$3^3\times 7^2\times {\mathrm{12517}}^1$

素因数の和:12540

約数の個数: 24

約数和(自身を含む): 28541040

約数和(自身を除く): 11981049

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 12517, 37551, 87619, 112653, 262857, 337959, 613333, 788571, 1839999, 2365713, 5519997, 16559991]

約数ペア:

[(1, 16559991), (3, 5519997), (7, 2365713), (9, 1839999), (21, 788571), (27, 613333), (49, 337959), (63, 262857), (147, 112653), (189, 87619), (441, 37551), (1323, 12517)]